Introduction:To assess exposure to second-hand smoke (SHS) in bus stops and markets, settings excluded from the Spanish Law 42/2010 regulating smoking in closed and open public places.

Material and Methods:Cross-sectional study in Barcelona assessing SHS exposure in 20 bus stops, 8 open markets, and 9 closed for comparison. We measured PM2.5 and vapour-phase nicotine as markers of SHS during 30 min (both in μg/m3), using a SidePak AM510 monitor and a cassette containing a filter treated with sodium bisulphate, respectively. We computed medians and interquartile ranges (IQR) and compared them according to traffic density, evidence of smoking (tobacco smell/butts), presence of smokers, wind speed, and type of bus stop (with/without shelter) or type of market (open/closed).

This journal has been funded by the Health Programme of the European Union
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